Gyiophis salweenensis QUAH, GRISMER, WOOD, THURA, ZIN, KYAW, LWIN, GRISMER & MURDOCH, 2017

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Higher Taxa	Homalopsidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Salween River Basin Mud Snake
Synonym	Gyiophis salweenensis QUAH, GRISMER, WOOD, THURA, ZIN, KYAW, LWIN, GRISMER & MURDOCH 2017
Distribution	Myanmar (Mon) Type locality: close to Sanpel Cave, Mawlamyine, Mon State, Myanmar (N16°22.427, E97°46.388; 44 m in elevation).
Reproduction	viviparous (manual imputation, fide Zimin et al. 2022)
Types	Holotype: LSUHC 12960, Adult female, collected on 8 October 2016 by Myint Kyaw Thura, Thaw Zin, Evan S.H. Quah, L. Lee Grismer, Perry L. Wood, Jr., Marta S. Grismer, Matthew L. Murdoch and Htet Kyaw.
Diagnosis	Diagnosis: Gyiophis salweenensis sp. nov. is separated from all congeners by having a unique combination of the following characters: a narrow rostral scale; the first three dorsal scale rows square; 129 (female) ventral scales; 30/29 (female) paired subcaudals; a divided cloacal plate; eight or nine supralabials; 10 infralabials; a maximum total length of 416 mm; relative tail length ratio of 0.13; a ventral patterning lacking a central spot on each ventral scale; the presence of a faint stripe on the lower, dorsal scale rows; and four rows of dark spots on the dorsum (Table 1). Additional details (726 characters) are available for collaborators and contributors. Please contact us for details.
Comment	Habitat: The holotype was found at approximately 1930 hours crossing a narrow dirt road between flooded fields that we presume to be its natural habitat. The valvular nostrils located dorsally on the snout indicate this species probably spends a large part of its life in the water.
References	QUAH, EVAN S.H.; L. LEE GRISMER, PERRY L., JR. WOOD, MYINT KYAW THURA, THAW ZIN, HTET KYAW, NGWE LWIN, MARTA S. GRISMER, MATTHEW L. MURDOCH 2017. A new species of Mud Snake (Serpentes, Homalopsidae, Gyiophis Murphy & Voris, 2014) from Myanmar with a first molecular phylogenetic assessment of the genus. Zootaxa 4238 (4): 571–582 - get paper here Scholten, C., Richter, A., Lin, A., Thura, M. K., Rauhaus, A., Grismer, L., ... & Rödder, D. 2025. Gaps in the Protection of the Reptiles of Myanmar—Threat Status, Endemism, Protected Area Coverage, and One Plan Approach Conservation. Integrative Conservation - get paper here Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
External links	National Center for Biotechnology Information https://www.facebook.com/groups/stshc/posts/350285760529362/ Google images

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